Open multistate Majorana model |
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| Institution: | 1. Università degli Studi di Palermo, Dipartimento di Fisica e Chimica - Emilio Segrè, Via Archirafi 36, 90123 Palermo, Italy;2. I.N.F.N. Sezione di Catania, Via Santa Sofia 64, I-95123 Catania, Italy;3. Department of Physics, Sofia University, James Bourchier 5 Boulevard, 1164 Sofia, Bulgaria |
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| Abstract: | The Majorana model in the presence of dissipation and dephasing is considered. First, it is proven that increasing the Hilbert space dimension the system becomes more and more fragile to quantum noise, whether dephasing or dissipation are mainly present. Second, it is shown that, contrary to its ideal counterpart, the dynamics related to the open Majorana model cannot be considered as the combined dynamics of a set of independent spin-1/2 models. |
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| Keywords: | Landau-Zener processes Adiabatic evolutions Decoherence Spin systems |
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